All of these are either tar files or compressed tar files, and are sitting there occupying space under /opt that you could use.

Move these files somewhere else on your system so they can be put back (in case one or more packages complain), but I would beleive that the Mozilla, FireFox, Thunderbird and GTK files could be safely tucked away, at the very least.

Re: /opt 100% full

Looking for big files is just the wrong way to solve disk space, especially in /opt. Each product requires specific files in specific directories, so removing or compressing random files will eventually break a lot of code.

Instead, look for big directories:

du -kx /opt | sort -rn | head -30

You will now see the largest products, most likely /opt/IBM, but check first. Assuming that /opt/IBM is the largest directory, create a new lvol that is 30% larger than /opt/IBM. Make the new lvol into a filesystem (newfs) and mount it to a temp directory.

Now shutdown all the apps that are part of the /opt/IBM directory structure. Copy all the directories and files to the new directory. Then verify the directory and file counts and if OK, umount the temp directory. Just in case, backup the /opt/IBM directory to tape. Now remove everything in /opt/IBM (leave the empty directory /opt/IBM). Now mount the new lvol as /opt/IBM and edit /etc/fstab to mount the /opt/IBM automatically on reboot.

None of this is needed if you have the Online JFS product (to expand the /opt filesystem) assuming you have room in vg00. If neither, use the above procedure.

If you need to move several applications in /opt, create a mountpoint called /opt2, then (after shutting down the affected applications), copy the complete /opt/app directory to /opt2 so it looks like this:

/opt2/IBM/opt2/tivoli/opt/VRTSob

Now remove the /opt/IBM...etc directories. Then create symlinks for the new locations: